roberts



A. ROBERTS.

nmgwfanvi cox-E ovm. APPLICATFON FIXED )UNE 22A 916- RENEWU) NOV.3.1918- latented Aug. 12, 1919.

f wh@ A. Roems. REGENERATIVE CKE 0V-EN. Y

APPLICATION FILED JUNE 22.1916. RENEWED NOV. 3,1918.

Patented Aug. 12, 1919 4 SHEETS-SHEET 2,

A. ROBERTS.

REGENEHATWE CUKE OVEN.

nPPUcMloN mw Juni 22. me. agufwzo Nov.'.19|a.

11 ,3 1 3, 208, Patented Aug. 12, 1919.

4 SHEETS-SHEET 3.

s, Y f, x \0 A ROBERTS REGENERATIVE CUKE OVEN.

Pmcnlou min jun: 22.1916. afnewfo nov. a, 191s. 1,313,208.

Patented Aug. 12, 1919.

4 SMITS-suur 4.

N MN.

BTH-UR ROBERTS, 0F EVANSTON, ILLINOIS.

REGEN ERATI. JE COKE F OVEN.

Speeicajtn of Letters Patent.

Application led June 22, 1916, Serial No. 205,133. Renewed November `8,1918. Serial No. 261,740.

vthe features of my invention as being eln- `bodied within aconstruction 1n which each' oven of a 'bench is provided with its ownindividual regencrator or regcncrators, as this is a very convenientmethod of applying the features of the invention. However,

certain of the features of the invention are not.v necessarily limitedto use in connection with constructions wherein there is provided anindividual regenerator for each oven.

. In previous constructions of regenerative coke ovens it has 'beenfound very diicult, if not impossible, to secure a uniform reactiolnThis difficulty has been through the regenerator. tend to vtake a s ortcnt through the' saine with the result that 'some portions of thechecker structure are not worked up to their maximum regeneratingcapacity. (lne of the features of the present invention has to do withthe provision of regenerator structures for coke ovens, whe-roby thisdiiiieulty may be eliminated. It has also been customary in the past toso relate the regcncrntor structures to the heating walls that areversal of direction of How in the regenerators has been accompanied bya similar or corresponding reversal. of gus flow through the heating'walls. The result has been Ythat the said heating walls were notuniformly heated, and furthermore each portion of the wall was subjectto rather severe strains occasioned by alternate. expansion andcontraction with the various reversals of iow. Another feature of myinvention, therefore, has reference to 4an arrangement in which theheating gases always flow through the heating walls in the samedirection and uninterruptedif.` at all times notwithstanding the:regular reversals taking .plum within the rcge-ncra-tors, thereby cn-.

aihling me to set-,uren perfectly uniform heating! of euch und' everyportion of the walls. At the same time I thus eliminate will appear froma detailed description of the severo strains of expansion andcontracliou previously referred to.

Another fea-turc of the invention has reference to the provision of a.construction euch that the controlling valves will at all limes beperfectly. accessible to an operator outside of the bench of ovens. Thatis to say, this feuturef the invention has to do with an arrangement ofconstructions including fines and the like, such that the control valvesor dempers may be placed at the most convenient 'and accessible intswith respon-t to the bench of ovens. lso in this connection anotherobject is to so arrange and relate these valves that the desiredreversals may be secured with a minimum minibar of moving parts, andwith moving parts of very great simplicity.

Uther obJects and uses of the invention the same, which consists in thefeatunesofconstruction and combinationsof parts hereinafter describedand claimed.

Referring wille deniega# C Figurel 'showsl a 'vertici a vxfiio throughtwoadjacent carbonizing' chambers with their heating walls andregenerabers; Fig. 2 shows a vertical 'lox'itudin'al section taken onthe line 2--2 of 'g. 1,1ookiing in the direction ofthe arrows; -8 Fig. 3shows a vertical longitudinal see- 'tiou taken on the line 3--3 of Fig.1, looking in the direction of the arrows;

lfig. 4 shows an enlarged fragmentary vertical section through thecontmldampers and adjacent passages of one oven with its regcnerators, being-taken on the line -l-t of Fig. 5, lookingi'n the direction of thearrows;

Fig. 5 shows a horizontal fr ta1*y-"96 section corresponding to Fig. 4,:being take "n on the line 5-5 of .=Fig. 4, looking intlil", diret-.tionof the arrows; "5*" Fig'. ishows an enlarged end elevntion of thecontrol dempers shown in Figs. 4 and 100 and i Fig. 7 shows a plan viewor .horizontal ser! ion through the lues in the foundation.

Referring to Fig. 1 I 'have therein illustratcd two adjacent carbonizinclimbers 7 106 and S. The chamber 7 has the heating walls i) and 10` andthe chamber 8 has the heating walls 11 and 12. The adjacent heatingwalls ,l0 and 11 of the consecutive carbonizing chambers 7 and 8 areclose together, and as 110 a malte-rot convl-:uience in illustration Ihave show the recuperator wall 13 between thdntw Th s recuperator wallis shown in several ligures as being of the type disclosed in myco-pendng applications for Letters Patent of the lizztcd States, SerialNos. 82'53503, filcvi lreccmber 4, 1914, and 69,995, Januar) "3, 1916.However, I have -illustra-tetl the saidreeuperatorwalls between- Atheheating walls largely as a matter of corm'enience, and I may say chieflyfor vthe plppose of supplying vertical air passages for carrying the airupwardly to the burners. It will presently appear that the saidrecupcrator walls are not an essential or even a necessary part of thefeatures of the present invention.

As a matter of convenience in illustration falso, I have shown each ofthe beating walls as being built up from separat-e blocks which arerecessed according to the principles disclosed and claimed in my LettersPatent of the United States, No. 1,132,685, issued March 23,- 1915.However, in this case also it will presently appear that any suitableform of heating wall may be adopted andthat I have shown the type ofheating wall which is herein illustrated simply as a mat-,

ter of convenience. I will state, however, that not all of the featuresof construction shown .in the heating wall herein disclosed are found in-the said Letters Patent, for the .reason that the heatingl wall hereindisclosed .includes certain features not shown in the heating'wall. Asole passage 18 is formed underneath the sole of each oven, and thespgm; gases reach the said passage 18 from t passages 17 by means of thedown connections 119. At each end' of the structure there is adown-comer 20 reaching downwai-diy from the end of the correspcndin iSole passage 18. The spent gases from eac solo passage traveldownwardly, rst throu h one down-comer and then through the ot er as thevalves are reversed.

Reference to Fig. l will disclose a passage 21 above each of therecuperator walls 13. It will also be secn from an examination of Fi 1and 3 that there are a lurality of burner connections 22 exten( ing'downwardly from thc *op of the bench to each of the passages 21.Examination of Fig. 3 will also disclose a [durality of vertical risersheatixig wall, there being damper blocks slidably mounted in the passage21 for the control of the delivery of the mixture of air and gas throughthe passa e 211 tothe heat.

ing wall. lVhen desirel, t ere may also be provided damper blocks 26 forcontrolling the sizes of the openings 23 to thereby con-- trol thedelivery of air into the passage 21.

The passages 23 lead upwardly from the recuperator wall and serve todeliver the air to the passage 21. It will be evident,A however, thatanj7 other arrangement might be adopted as desired, and that as far asthis feature of the invention is concerned the recuperator wall servessimply as a means for providing passages for the delivery'of air to the21.

From the constructions thus disclosed, it will be apparent thatl the airflowing upwardly through the recu-perator wall passes under control intothe passage 21'where it meets the gas flowing downwardly Vfrom theconnections This gas may also be luider control, inasmuch as 1t willordinarily Vbe delivered to the passa 22 from a header or the like. Itwill a so be apparent that the mixture of air and gas passes downwardlythrough the connections 24 into the upper portion of the heating wallwhere it burns.

In the particular construction illustrated each recuperator wall servesto supply air to two adjacent heating Walls of two consecutive ovens,and a similar function is performed by each of the pass ves 21. It willbe evident, however, that wit out departing from' the spirit of myinvention, each of these structures or passages might supply the air ormixture to only a sin le heating wall, or to two heating walls o thesame Oven;

Each pair of heating walls and the intermediate recuperatinp,` Walliscarried by a vertical' wall ,or partition 27 which extends upwardlyfromthe foundation. It is thus evident that the load vis transmitteddirectly to the foundation through these walls. Furthermore, the soleportion of each oven is carried by a series of transverse blocks 28which extend between two of the walls 27. Consequently, the walls 27 carnot only the oven structures, but also the oads within the carbonizingchambers.

Between each pair of the walls 27 is a regenerator chamber or a pair orregonerator chambers, as is bos-t shown in Figs. l and 2. ln thclconstruction illustrated a partition 28 runs longitldinully of the benchof ovens, so that. underneath each carbonizing A trutcd in Fi 5.

chamber there are formed the two regenerator chambers 29 and, 30.Underneath the central portion of the bench there are the longitudinallyextending tonni-.is 31 and 32. Reference to Fig. i', which is -a planView of the tunnels 3l and 32, will disclose a conimon connection 33extending` between the end 4portions of the said tunnels. A connor.-tion 34 leads from the said common coxmcctionrto the stack or to thedraft producing.

mechanism, and dainpers and 36 are provided for connecting either theone or the other of the tunnels 3l andi-l2 to the said connection '34aAirfconnections 37 and 3S lead into'the tunnels 31 and 32, so that aircan be supplied to either of the said tunnels as desired. 1

By closing the dampen-'36, and opening` the damper 35, thespent gasesvfrom the tunnel 3l will beV delivered to the connection 34, land upondelivering air through the connection 38' the said air will reach thetunnel 32. By reversing the damper-s 35 and 36, the spent gas from thetunnel 32 will be delivered to the connection 34, and by deliveringfresh air through the connechn 37, the said air will ,be delivered intothe tunn'elfl.

The inner end of each of the regenerate:- chambers 29 is permanentlyconnected to' the tunnel 31 by a down-connection 39 and in like-mannerthe inner end of each of the ehambers is connected to the tunnel 32 bydown-connection 40. These connections 4lire nt and it is not necessaryto use an valvemechansm at this point. ndern theach of the recu 4ratingwalls is an'air ncliarmelatl, .and eac end of each of the saidaix-.channels is connected to a riser 42. The risers 42 alternatebetween the down-comers 20 4as is very clearly illuszThese risers anddown comers may `convenienti built into wall structures 43 'extending aong underneath the side portions of the bench.

.jiThe lower end of each down-comer 20 is carried forwardby a connection44, and the outer endof, each of the said connections leads downwardly,under the control of a valve 45, to a. port 46. Underneath each oftheconnectionsis a horizontal passage 47, the innerend of which ispermanently connected to the corresponding regenerator chamberby a port48,*imd the'outer end of which connects, nder the control of a valve 9,with@ port ,0. .The said port 5 0 connects to a passage 51, the innerend of which communicates by an offset portion 52 with the lower end ofthe next adjacent riser 42. When-operating on the air half of the cycle,the air flows from the regeneratcr through the Bort 48, connection 47,port (the valve 45 `eing closed and the valve 49 being opened) throughthe connection 5l and connections 52 to the riser 42. ,Thence the air isdelivered upwardly to the air channel 41 and tinds its way to theburners. 0n the heatingy half of the cycle the positions of the. valves45 und 19in-e reversed, the valve '15 being opened and the valve 49being closed. Simun.nleouslyA the necessary reversals are made in thedempers 35 and 36 and in the air supply connections 3T und 38. Underthese conditions the spent gas flows downwardly through the downcomer20, across the connection 44 through the port 4G, across the connection4T, through the port 48 into the regenerator chamber.

It will be understood that a. set of connections. and dempers such usare illustrated in Figs. L and is provided on each side of the bench ofovens for each oven, or for each pair of regenerator chambers. It willalso be understood that the regcnerator chambers 29 and 30 operate inpairs, one of the said chambers workingy on air, while the other chamberis workingA on the spent gas.

It was previously statedthat one of the objects of the invention is topro'vide an arrangement whereby practically all portions of theregenerator charnhe'rsfgivill be worked upto Vthe maximimqelci W' uregenerating capacit o1`"=t` each of the said chan'i'bers may bepgovlded with a plurality of baflles-53, 54 and 55, between which areset the checker structures, 56, 57, 58 and 59. By this series of belliesthe air and l nately up an down in passing betwienitho connections 48and 39 or 40, so that it is quite impossible for the air or spent gas tofrequently happen when the said baiiies are not rovlded.

cys-and shunt directly across the structure aswill los Vl ile in Fig. 2I have illustratedthebullies as being coin-posed of solid artitions,

still it is evident that they might eformed in any other suitablemanner, as for example bv simply placing the bricks in Vsome porthan inthe other portions.

While I have herein shown and described only a single constructionembodyin the features of my invention, still it will be understood thatI do not limit myself to the Ations of the checker-work closer togethersaid construction except as I may do so in l the claims, lint that onthe contrary I contcmplateany equivalent constructions operating in4equivalent manners to produce equivalentresults.

I claim:

1. The combination with a bench of coke ovens having heatin walls andburners, of

`a regenerator cham er under each end ofA each oven, a. pair of tunnelsrunning lengthwise of the bench beneath the said regenerator chambers,a. direct connection from each regenerawr chamber tothe adjacent tunnel,a down-comer from each end of each heatiso ing wall, a riser adjacent'tocach dini-ii comer, the upper ond of cach riser bciiipr in communicationwith the linr'ners of the correspoiiding heating wall, a"conncction fromeach reg'eiiclator cliuiiibor to iipoint adjacent to thccori'cspoiidlingr riscr and downcomer, and valve mechanism forconnecting each connection to the adjacent riser or to t o adjacentdown= nner as desired.

2. Ina bene-ll of colte ovens having' iii-:iting walls and burners ineach heating wall, the conihinii'ition with the said lieatiiiplwalls andburners of a regcnerator chamber iiiiilcr cat-.li ond of each coke oven,a connnon f-.innec-tion in communication with all of thc rcgenerators onone side of the bench7 :i coinlnon connection in coii'iiiiiinii-iitionwith all of the regeneratots on the other side of the bench, aown-coincr from cach cnil oi thc 2n lieatin wall of cach oven, a riserat cach cnil of enel oven leading to the corresponding burners, andmeans for placing;r each rcgenerator chamber in coniiiitiniciition withthe corresponding riser or down-coinci- :is desired.

3. In a bench of coke ovens haring lient.- ing walls and burners, thecombination with each oven of a regenerator chamber under .each end ofet. h oven, a flown-comer from euch end of the heating fails of eachoven, a riser at each end of each oven for each set of burners, andmeans for placing each regenerator chamber in comriinnication with thecorresponding down-comer or the corre- :gI spondinfg riser as desired.

4. In a. bench of coke ovens having heating Walls and burners, thecombination with each oven of a sole passage beneath the said oven andin communication with the discharge sides of the corresponding heatingrwa 11s, a regcncrator chamber nnder cach end of each sole passage, avdown-comer from each end of each solo passage., an air connec- A tionfor cach set of burners. n riser coni` mimica-ting with cach cndi of thesaid air passage, and means for connecting each regenerator chamber witheither the correspending down-comer or riser as desired.

5. In a, bench of coke ovens having heating walls vand burners, thecombination with the heating walls of each oven of a sole passage forthe collection of spent gases from the said heating walls, a commonconnection for the, delivery of air to each set. of burners, arcgeiicrator cli-amber iindcr each end of each sole passage, adown-comer from each end of each sole passage, a riser communicatingwith each end of cach air connection, and means for placing cachrcgenerator chamber in communication with either the correspondingdown-comer or thc corresponding riser :is dcsiircl.

6.'In a bench oi colic ovens. tlic combination with a lit-.ating wall:intl biiriiei'sltlicrc 6b for, of :i solo pass-.ige for thc collectionof linrncrs,

alsace spent gases of the lic-ating wall, a coinn'ion connection for thedelivery of air to :he burners of the said boating wall, a regeneratorchamber under cach end of the siiid sole passage, a down-coiiier fromeach end of the solo passage, a riser to cach end of the air connection,and means for placingeach regencrator chamber in communication witheither the corres! I )onding down-comer or the corresponding riser asdesired.

7. In a bench of coke ovens, a heating wall and burners therefor a spentgas connection for the collection o. spent gases from the heating wiill,a common connection for the delivery of air to the said burners, aregcnerator chamber adjacent to each end of the spent gas passage, aconnection fiom cach end of the spent as passage, a connection from eachend of t e air connection, and ineans for placing each negeneratorchamber in communication. with either the corresponding spent gasconnection or the coi-rcsponding air connection as desired.

8. The combination with a coke oven lia-ring heating walls and bin-ners,of Van air connection cxiending longitudinally of the oren and supplyingair to the several liiii-ncrs, a riser at cach end of the oven incommunication with the said air connection, :i sole passage beneath theheating walls and receiving spent gus therefrom, a downcomcr from eachend of said sole passage, a pair of tunnels, a pair 0f regenerators, apermanent connection from the inner end of cach regencratmto theadjacent tunnel, a connection from the other end of each regcncrator,and valve mechanism for placing thc last mentioned connections incommunication with the corresponding downcomcr 6r the correspondingriser as desired. 105

9. The combination with a coke oven having heating walls and burners, ofan air connection extending longitudinally of the oven and supplying airto the several a. riser at each end ofthe oven in coiriniiinication withthe said air connection,

a sole passage beneath the heating walls and receiving spent gastherefrom, a downcomer from each end of the sole passage, a regeneratorbeneath each end o the oven, and suitable valve mechanism for placingeach rogencriitor in communication with either the correspondingdowncomer or the corresponding riser as desired.

10. The combination with a coke oven having heating walls and, burners,of an air connection extending.longitudinally of the oven and supplyingair to the several burners. a riser in communication with each cnd ofthe .said air connection, a sole passage liciicatli thc heating wallsand receiving spent. las Atherefrom1 a rcgcnerator for cach 4cnil of thcoverhemd suitable valve mcclia- 'nisni for plat-innY cach rcgcncriitorin connection with .either the corresponding riser or the correspondingend of the sole passa e.

11. The combination with. a coke oven having a heating wall and burnersof an air connection extendinglongitudinaily of the oven and supplyingair to the ,several burners, a riser in communication with cach end ofthesaid ai'rconnection, a sole passage receivingV spent gas from theheating wall, a downcomer fromleach end of the sole passage, 'aregenerator for each end of the oven, and suitable valve mechanism forplacin each regenerator in communication with either the correspondingriser or the corresponding downcomer.

12. The combination with a coke oven heating wall having heating passaes, and

burners at one end of said passa t ere being a channel, for the removalo spent gases from the other ends of all of the passages, of means foralways suglllying air to all of the burners in unison m either end ofthe heating wall, means for alwa s removing spent gas 1n unison from allo the heating passages and from either end 0f the heating heating wallhaving 1,813,208 j Y y U wall, suitable regenerator mechanism for euchend of the structure,` and means for placing said -regenerator mechanismseIectively in communication with the air supply means at one end andthe spent gas removing means at thc other end. t

13. The combination with a coke oven heating passages, and burners fordelivering combustible mixture into one end of the pass channel for theremoval o spent gas simultaneously from the other end of the passages,of connections at each end of the 'heating wall for supplying airsimultaneouslyr to all of the burners 1n common, and for removing spentgas from the channel, a regenerator or each end of the heating Wall, anda set of valves at each end of the structure for connecting thecorresponding re' generator to either the air supply connection or thespent gas connection.

ARTHUR ROBERTS. Witnesses:

THoMAs A. BANNING, .'r.,v Francas M. Fnos'r.

s, there being :N

